Move GrInvariantOutput out of GrProcessor and into its own class.

src/gpu/GrDrawState.cpp

Index: src/gpu/GrDrawState.cpp
diff --git a/src/gpu/GrDrawState.cpp b/src/gpu/GrDrawState.cpp
index d300f2b9bbd12d6d78f66bbccedefe2a144a82f8..f1e7704300080b22acfd6e9986c6f976ed3ca578 100644
--- a/src/gpu/GrDrawState.cpp
+++ b/src/gpu/GrDrawState.cpp
@@ -7,6 +7,7 @@
 
 #include "GrDrawState.h"
 
+#include "GrInvariantOutput.h"
 #include "GrOptDrawState.h"
 #include "GrPaint.h"
 
@@ -388,7 +389,7 @@ bool GrDrawState::hasSolidCoverage() const {
         return true;
     }
 
-    GrProcessor::InvariantOutput inout;
+    GrInvariantOutput inout;
     inout.fIsSingleComponent = true;
     // Initialize to an unknown starting coverage if per-vertex coverage is specified.
     if (this->hasCoverageVertexAttribute()) {
@@ -710,7 +711,7 @@ GrDrawState::BlendOptFlags GrDrawState::getBlendOpts(bool forceCoverage,
 
 
 bool GrDrawState::srcAlphaWillBeOne() const {
-    GrProcessor::InvariantOutput inoutColor;
+    GrInvariantOutput inoutColor;
     inoutColor.fIsSingleComponent = false;
     // Check if per-vertex or constant color may have partial alpha
     if (this->hasColorVertexAttribute()) {
@@ -737,7 +738,7 @@ bool GrDrawState::srcAlphaWillBeOne() const {
     if (this->isCoverageDrawing()) {
         // The shader generated for coverage drawing runs the full coverage computation and then
         // makes the shader output be the multiplication of color and coverage. We mirror that here.
-        GrProcessor::InvariantOutput inoutCoverage;
+        GrInvariantOutput inoutCoverage;
         inoutCoverage.fIsSingleComponent = true;
         if (this->hasCoverageVertexAttribute()) {
             inoutCoverage.fValidFlags = 0;